Compare 21/8 and 84/56
1st number: 2 5/8, 2nd number: 1 28/56
21/8 is greater than 84/56
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
84/56 = 84 × 1/56 × 1 = 84/56 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/56 > 84/56 or 21/8 > 84/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8 and 84/56 21/16 and 84/56 63/8 and 84/56 21/24 and 84/56 21/40 and 84/56 21/56 and 84/56